Question

medal and fan
Using the ratio of perfect squares method, what is square root of 89 rounded to the nearest hundredth?



Do not use your calculator to answer this question. Use the ratio of perfect squares method.

Answer 1

@welshfella

Answer 2

what are the 2 perfect squares spanning 89?

Answer 3

9^2 = 81
and
?

Answer 4

what is the next perfect square after 81?

Answer 5

@Thesmarterone

Answer 6

10^2 = 100

Answer 7

the square root of 89 must be between 9 and 10

Answer 8

ooo ok

Answer 9

- beacuse 89 is between 81 and 100

Answer 10

now 89 is 8 more that 81
and 100-81 = 19

so by the method sqrt 89 = 8 8/19
or as a decimal that is 8.42

Answer 11

ok I c now thanks